1 package net.logAnalyzer.utils.gui.treetable;
2 /*
3 * %W% %E%
4 *
5 * Copyright 1997, 1998 Sun Microsystems, Inc. All Rights Reserved.
6 *
7 * Redistribution and use in source and binary forms, with or
8 * without modification, are permitted provided that the following
9 * conditions are met:
10 *
11 * - Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 *
14 * - Redistribution in binary form must reproduce the above
15 * copyright notice, this list of conditions and the following
16 * disclaimer in the documentation and/or other materials
17 * provided with the distribution.
18 *
19 * Neither the name of Sun Microsystems, Inc. or the names of
20 * contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
22 *
23 * This software is provided "AS IS," without a warranty of any
24 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
25 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
26 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
27 * EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY
28 * DAMAGES OR LIABILITIES SUFFERED BY LICENSEE AS A RESULT OF OR
29 * RELATING TO USE, MODIFICATION OR DISTRIBUTION OF THIS SOFTWARE OR
30 * ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS LICENSORS BE LIABLE
31 * FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT, INDIRECT,
32 * SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
33 * CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF
34 * THE USE OF OR INABILITY TO USE THIS SOFTWARE, EVEN IF SUN HAS
35 * BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
36 *
37 * You acknowledge that this software is not designed, licensed or
38 * intended for use in the design, construction, operation or
39 * maintenance of any nuclear facility.
40 */
41
42 import java.awt.Component;
43 import java.awt.event.*;
44 import java.awt.AWTEvent;
45 import javax.swing.*;
46 import javax.swing.event.*;
47 import java.util.EventObject;
48 import java.io.Serializable;
49
50 /***
51 * @version %I% %G%
52 *
53 * A base class for CellEditors, providing default implementations for all
54 * methods in the CellEditor interface and support for managing a series
55 * of listeners.
56 *
57 * @author Philip Milne
58 */
59
60 public class AbstractCellEditor implements CellEditor {
61
62 protected EventListenerList listenerList = new EventListenerList();
63
64 public Object getCellEditorValue() { return null; }
65 public boolean isCellEditable(EventObject e) { return true; }
66 public boolean shouldSelectCell(EventObject anEvent) { return false; }
67 public boolean stopCellEditing() { return true; }
68 public void cancelCellEditing() {}
69
70 public void addCellEditorListener(CellEditorListener l) {
71 listenerList.add(CellEditorListener.class, l);
72 }
73
74 public void removeCellEditorListener(CellEditorListener l) {
75 listenerList.remove(CellEditorListener.class, l);
76 }
77
78 /***
79 * Notify all listeners that have registered interest for
80 * notification on this event type.
81 * @see EventListenerList
82 */
83 protected void fireEditingStopped() {
84 // Guaranteed to return a non-null array
85 Object[] listeners = listenerList.getListenerList();
86 // Process the listeners last to first, notifying
87 // those that are interested in this event
88 for (int i = listeners.length-2; i>=0; i-=2) {
89 if (listeners[i]==CellEditorListener.class) {
90 ((CellEditorListener)listeners[i+1]).editingStopped(new ChangeEvent(this));
91 }
92 }
93 }
94
95 /***
96 * Notify all listeners that have registered interest for
97 * notification on this event type.
98 * @see EventListenerList
99 */
100 protected void fireEditingCanceled() {
101 // Guaranteed to return a non-null array
102 Object[] listeners = listenerList.getListenerList();
103 // Process the listeners last to first, notifying
104 // those that are interested in this event
105 for (int i = listeners.length-2; i>=0; i-=2) {
106 if (listeners[i]==CellEditorListener.class) {
107 ((CellEditorListener)listeners[i+1]).editingCanceled(new ChangeEvent(this));
108 }
109 }
110 }
111 }
112